Unlike all previous Star Trek series, Star Trek: Discovery's media tie-ins are being produced with a very close degree of oversight by the show producers and writers. While they are still considered non-canonical, the books and comics are created with far greater influence by the show creators than any other Star Trek tie-in fiction line has ever been.
This page includes all Discovery novels, comics, and the episodes themselves in chronological order. I also included the Pike Short Treks, despite the fact that I don't really consider them part of Discovery, due to the nature of their closeness with the show. To see a breakdown of the specific dates each episode of Discovery takes place on, see here.
ST #8- The Girl Who Made the Stars
ST #3- The Brightest Star
The Way to the Stars
ST #5- Q&A
1x01- The Vulcan Hello
1x02- Battle at the Binary Stars
The Light of Kahless, Issue #1
The Light of Kahless, Issue #2
The Light of Kahless, Issue #3
The Light of Kahless, Issue #4
1x03- Context is For Kings
1x04- The Butcher's Knife Cares Not For the Lamb's Cry